Four slots for ddr4 ram memory modules on a modern black pc motherboard. Computer mainboard circuit components. Desktop hardware close-up Stock Photo - Alamy
How to install RAM | Rock Paper Shotgun
5 Steps to Installing DDR4 RAM (2020 Guide) - BGC
CMS 8GB (1X8GB) DDR4 19200 2400MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with ViewSonic® PC VPC10-WP-x Slot-in PC, VPC10-WP-4, VPC14-WP-x Slot-in PC - C106 at Amazon.com